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Image reading device and multifunction apparatus

a multi-functional, reading device technology, applied in the direction of electrical devices, pictures, etc., can solve the problems of increasing the power consumption of the image reading device, imposing unnecessary heavy loads on the driving source, and the device is large in size, so as to achieve the effect of minimizing the power consumption of the driving source without sacrificing user convenien

Inactive Publication Date: 2008-02-28
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is an image reading device that includes a light source and an image pickup element moving mechanism. The device has a positioning member that can be moved to a set position for coupling the light source and image pickup element moving mechanisms together. The coupling mechanism couples the two mechanisms together, allowing them to work together using the same driving source. This reduces the size and weight of the device, while minimizing power consumption and sacrificing user convenience. The positioning member can be positioned by the driving force of a rotary member, further reducing the size of the device. The device also includes a cover member that can be in contact with and separated from the document table, allowing for easy positioning of the second light source. The second light source is a light-emitting diode (LED) that can light up quickly, allowing for quick document reading and minimizing power consumption. The device can be used in a multifunction apparatus that includes both an image reading device and an image forming device.

Problems solved by technology

As a result, there is a problem in which the image reading device has a large size and the power consumption of the image reading device is increased.
As a result, there is a problem in which an unnecessary heavy load is imposed on the driving source and an unnecessary large amount of power is consumed.
However, there is a problem in which such a switching operation is troublesome to the user and a malfunction may be caused by mishandling by the user.

Method used

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  • Image reading device and multifunction apparatus
  • Image reading device and multifunction apparatus
  • Image reading device and multifunction apparatus

Examples

Experimental program
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first embodiment

[0035] An image reading device according to a first preferred embodiment of the invention is described below with reference to the accompanying drawings. The first embodiment indicates an application example to a scanner device that actualizes the image reading device according to the invention.

[0036]FIG. 1 is a perspective view that illustrates an outer appearance of the scanner device according to the first embodiment. First, the outer appearance of a scanner device 100 will described. As illustrated in FIG. 1, the scanner device 100 includes a main body unit 110 and a light source unit 120 for a transparent document (hereinafter referred to as a “TPU unit”) serving as a cover member.

[0037] The TPU unit 120 is arranged so as to face the main body unit 110 and is coupled to the main body unit 110 via a hinge (see reference numeral 300 in FIG. 3). The TPU unit 120 is coupled thereto so as to be able to pivot about the hinge in a direction that is separated from the main body unit ...

second embodiment

[0084] An image reading device according to a second preferred embodiment of the invention is described below with reference to the accompanying drawings. The second embodiment indicates an application example to a scanner device that actualizes the image reading device according to the invention. In the second embodiment, the same reference numerals are used as in the first embodiment for similar parts, and the description thereof is omitted.

[0085]FIG. 9 is a partial cutaway perspective view of the scanner device according to the second embodiment. FIG. 9 illustrates a section when a part of the TPU housing 230 and the main body housing 210 is cut. Each component to which the driving force of the motor 222 is transmitted will be described below using FIG. 9.

[0086] As illustrated in FIG. 9, the pulley 307 included in the scanner device 100 according to the second embodiment is coupled to a magnetic body 900 via the group of pulleys 308. The magnetic body 900 is a rotary member con...

third embodiment

[0099] An image reading device according to a third preferred embodiment of the invention is described below with reference to the accompanying drawings. The third embodiment indicates an application example to a multifunction apparatus that actualizes the image reading device and an image forming device according to the invention. In the third embodiment, the same reference numerals are used as in the first and second embodiments for similar parts, and the description thereof is omitted.

[0100]FIG. 12 is a perspective view that illustrates an outer appearance of a multifunction apparatus according to the third embodiment. A multifunction apparatus 1200 according to the third embodiment includes the scanner device 100, which is described in the first and second embodiments, and a printer 1201 serving as an image forming device that forms, on a recording medium, an image corresponding to the intensity of light incident on the image pickup element 217 included in the scanner device 10...

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PUM

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Abstract

In a scanner device including a reflective light source disposed at the same side as a side at which an image pickup element is disposed with respect to a document table glass and a transmissive light source disposed at a side opposite the image pickup element with the document table glass arranged therebetween, an image pickup element moving mechanism moves the image pickup element in a sub-scanning direction. A light source moving mechanism moves the transmissive light source in the sub-scanning direction. A film holder is movable to a set position on the document table glass and to a different position from the set position and positions a transparent document when being positioned in the set position. A coupling mechanism couples the image pickup element moving mechanism and the light source moving mechanism together such that both the moving mechanisms are capable of working together via a gear when the film holder is positioned in the set position.

Description

BACKGROUND OF THE INVENTION [0001] The present invention relates to an image reading device and a multifunction apparatus. [0002] Conventionally, an image reading device is known that includes a reflective reading mechanism emitting light from a reflective light source disposed at the same side as a side at which an image pickup element is disposed with respect to a document table for holding a document and reading light reflected from the document and, in addition, a transmissive reading mechanism emitting light from a transmissive light source for transmission disposed opposite the image pickup device with the document table arranged therebetween and reading light having passed through the document. One such example of the image reading device is an image device that reads an image of a document while moving a light source and an image pickup element concurrently in a scanning direction (see, for example, Patent Document 1 below). [0003] Patent Document 1: JP-A-10-051596 [0004] Ho...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N1/04
CPCH04N1/1013H04N1/193H04N2201/0418H04N2201/0094H04N2201/0081
Inventor OGUCHI, SATOSHI
Owner SEIKO EPSON CORP